Association between childhood constipation and exposure to stressful life events: a systematic review. - Liyanarachchi, Hasitha; Rajindrajith, Shaman; Kuruppu, Chandrani; Chathurangana, Prasad; Ranawaka, Randula; Devanarayana, Niranga M.; Benninga, Marc A. (Neurogastroenterology & Motility, 2022)